AP EAMCET Engineering 24 Apr 2017 Shift 1 Paper
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If f : IR − {0} → IR is defined by f ( x ) = x +
and if f k ( x ) = [ f ( x ) = [ f ( x ) ] k for k≥1 then f 4 ( x ) − f ( x 4 ) − 4 f 2 ( x ) =
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